Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Business Expenditures on New Plant and Equipment," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "August 1957," Federal Reserve Bulletin (August 1957) : 93-93. https://fraser.stlouisfed.org/title/62/item/21272/toc/99696 , accessed on April 17, 2024.